Answer to Question #289596 in General Chemistry for MIKE

Question

Calculate E° for the following:

a.Iron and water to produce iron(II) hydroxide and hydrogen gas.

b.Pt | S2- | S || NO3- | NO | Pt (basic medium).

c.3SO42-(aq)+12H+(aq)+2A1(s) 3SO2(g)+2A13+(aq)

Answer 1

Fe + 2H2O--->>H2+Fe(OH)â‚‚

Fe²⁺+2e^--->> Fe

E°= 0.768

4H⁺+O₂+4e^---->> H₂O

E°= 1.229

= 1.229+0.768= 1.997